:root{--bg:#f4f5f3;--panel:#fff;--ink:#1b2528;--muted:#667276;--line:#dfe3e1;--accent:#0f6e6e;--accent-2:#e8f3f2;--warn:#a15c00;--warn-bg:#fff4e0;--r:10px}
@media (prefers-color-scheme:dark){:root{--bg:#161b1c;--panel:#1e2527;--ink:#e8eceb;--muted:#9aa6a8;--line:#2f393b;--accent:#4fc0bb;--accent-2:#1d3534;--warn:#f0b35a;--warn-bg:#3a2e17}}
*{box-sizing:border-box}html,body{height:100%;margin:0}
body{font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.muted{color:var(--muted)}code{background:var(--accent-2);padding:1px 5px;border-radius:4px}
.btn{font:inherit;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer}
.btn:hover{border-color:var(--accent)}.btn.small{padding:5px 10px;font-size:13px}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.on{background:var(--accent);color:#fff;border-color:var(--accent)}
/* login */
.login-body{display:grid;place-items:center;padding:16px}
.login-card{width:100%;max-width:400px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}
.login-card h1{font-size:22px;margin:6px 0 4px}.login-card label{display:block;margin:14px 0 0;font-size:13px;color:var(--muted)}
.login-card input{display:block;width:100%;margin-top:4px;padding:10px 12px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px}
.login-card .btn{width:100%;margin-top:18px;padding:11px}.err{color:#c0392b;min-height:20px;margin-top:10px;font-size:13px}.proto{margin:18px 0 0;font-size:12px;color:var(--muted)}
.brand{font-weight:700;letter-spacing:.02em;color:var(--accent)}
/* app shell */
.app-body{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden}
.top{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--line);gap:12px}
.top-l,.top-r{display:flex;align-items:center;gap:12px;min-width:0}.sep{width:1px;height:18px;background:var(--line)}.proj{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.layout{flex:1;display:grid;grid-template-columns:300px minmax(0,1fr) 370px;min-height:0}
.panel{background:var(--panel);overflow:auto;min-height:0}.left{border-right:1px solid var(--line);display:flex;flex-direction:column}.right{border-left:1px solid var(--line)}
.panel-h{padding:12px 14px 6px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.tree{flex:1;overflow:auto;padding:0 8px 8px}.room{margin:10px 6px 4px;font-weight:600}.room small{color:var(--muted);font-weight:400}
.row{display:flex;justify-content:space-between;gap:8px;align-items:baseline;padding:6px 8px;border-radius:7px;cursor:pointer}
.row:hover{background:var(--accent-2)}.row.sel{background:var(--accent);color:#fff}.row.sel .p,.row.sel small{color:#fff}
.row.g{font-weight:600}.row.t{padding-left:22px;font-size:13px}.row .p{font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap;font-size:13px}.row small{color:var(--muted)}
.summary{border-top:1px solid var(--line);padding:12px 14px;font-size:13px}.summary div{display:flex;justify-content:space-between;padding:2px 0}.summary .gt{font-weight:700;font-size:15px;border-top:1px solid var(--line);margin-top:4px;padding-top:6px}
.summary a{display:block;text-align:center;margin-top:10px;text-decoration:none}
/* stage */
.stage{position:relative;min-width:0;background:linear-gradient(#eef1f0,#d9dfdd)}
@media (prefers-color-scheme:dark){.stage{background:linear-gradient(#252d2f,#171c1d)}}
#c{position:absolute;inset:0;width:100%;height:100%;display:block;outline:none;touch-action:none}
.toolbar{position:absolute;top:10px;left:10px;right:10px;display:flex;gap:8px;flex-wrap:wrap;pointer-events:none}.toolbar>*{pointer-events:auto}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel)}
.seg button{font:inherit;font-size:13px;border:0;background:transparent;color:var(--ink);padding:6px 11px;cursor:pointer}.seg button.on{background:var(--accent);color:#fff}
.hint{position:absolute;bottom:8px;left:0;right:0;text-align:center;font-size:12px;color:var(--muted);pointer-events:none}
.loading{position:absolute;inset:0;display:grid;place-content:center;gap:10px;text-align:center;background:var(--bg)}.bar{width:220px;height:6px;border-radius:3px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
/* detail */
#detail{padding:16px}.crumb{font-size:12px;color:var(--muted);margin-bottom:4px}.crumb a{color:var(--accent);cursor:pointer;text-decoration:underline}
#detail h2{font-size:19px;margin:0 0 2px}.code{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted)}
.price{margin:14px 0;padding:12px 14px;border-radius:var(--r);background:var(--accent-2)}.price .big{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}.price small{display:block;color:var(--muted)}
.note{margin:12px 0;padding:10px 12px;border-radius:8px;background:var(--warn-bg);color:var(--warn);font-size:13px}
h3{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:18px 0 6px}
ul.spec{margin:0;padding-left:18px}ul.spec li{margin:2px 0}
table.bd{width:100%;border-collapse:collapse;font-size:13px}table.bd td{padding:6px 4px;border-bottom:1px solid var(--line);vertical-align:top}table.bd tr.click{cursor:pointer}table.bd tr.click:hover{background:var(--accent-2)}table.bd td.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
details{border-top:1px solid var(--line);padding:8px 0}summary{cursor:pointer;font-weight:600;font-size:13px}details ul{margin:6px 0 0;padding-left:18px;color:var(--muted);font-size:13px}
.empty{padding:28px 20px;color:var(--muted)}.empty b{display:block;color:var(--ink);font-size:16px;margin-bottom:6px}
.tabs{display:none}
@media (max-width:900px){
  .layout{display:block;position:relative;flex:1;min-height:0}
  .panel,.stage{position:absolute;inset:0;display:none}.layout[data-pane=parts] .left{display:flex}.layout[data-pane=view] .stage{display:block}.layout[data-pane=info] .right{display:block}
  .left,.right{border:0}.tabs{display:flex;order:5;border-top:1px solid var(--line);background:var(--panel)}.tabs button{flex:1;font:inherit;padding:12px;border:0;background:none;color:var(--muted)}.tabs button.on{color:var(--accent);font-weight:700;box-shadow:inset 0 2px var(--accent)}
  .top .muted{display:none}.brand{white-space:nowrap;font-size:13px}.hint{display:none}
}

.stage.plan{background:#fafbfa}@media (prefers-color-scheme:dark){.stage.plan{background:#1a2022}}
[hidden]{display:none!important}
.pick{font:inherit;font-size:13px;padding:5px 8px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);max-width:200px}
.empty-page{max-width:520px;margin:20vh auto;padding:20px;text-align:center}

/* overlay: labels, pins, dimensions */
.ov{position:absolute;inset:0;pointer-events:none;overflow:hidden}.ovi{position:absolute;left:0;top:0;white-space:nowrap;pointer-events:none;will-change:transform}.ovi.click{pointer-events:auto;cursor:pointer}
.lbl{font-size:12px;line-height:1.2;padding:2px 8px;border-radius:99px;background:rgba(255,255,255,.82);color:#1b2528;border:1px solid rgba(0,0,0,.08)}
.lbl-room{font-size:14px;font-weight:700;letter-spacing:.02em;background:var(--accent);color:#fff;border-color:transparent}
.lbl-unit{font-weight:600}.lbl-unit:hover{background:var(--accent-2)}.lbl-part{font-size:11px;background:rgba(255,255,255,.7);color:#41505a}
@media (prefers-color-scheme:dark){.lbl{background:rgba(30,37,39,.85);color:#e8eceb;border-color:rgba(255,255,255,.12)}.lbl-room{background:var(--accent);color:#06201f}.lbl-part{background:rgba(30,37,39,.75);color:#b4c0c2}}
.toolbar .pick{max-width:150px}

.lbl-meas{background:#e8590c;color:#fff;font-weight:700;border-color:transparent}.lbl-dim{background:#0b4d4a;color:#fff;border-color:transparent}
#sizebox,#arbox,#comments,#review{padding:0 16px}#sizebox h3,#comments h3{margin:14px 0 6px}
.sizeval{display:flex;gap:14px;flex-wrap:wrap}.sizeval span{display:flex;flex-direction:column;font-weight:600}.sizeval small{font-weight:400;color:var(--muted)}
.mrow{display:flex;gap:8px;align-items:center;margin:4px 0}.mrow b{min-width:90px}.mrow .muted{flex:1}.small{font-size:12px}

.pin{width:24px;height:24px;border-radius:50% 50% 50% 0;transform-origin:center;background:#d6336c;color:#fff;font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.4)}
.pill{display:inline-block;font-size:11px;padding:1px 8px;border-radius:99px;background:var(--accent-2);color:var(--accent);font-weight:600}.pill.ok{background:#e1f4e5;color:#1e7a34}.pill.warn{background:var(--warn-bg);color:var(--warn)}
.revbar{margin:14px 0;padding:12px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}.revhead{display:flex;justify-content:space-between;align-items:center}.revlist{margin-top:8px;display:grid;gap:6px}.revact{margin-top:10px}
textarea{width:100%;box-sizing:border-box;font:inherit;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);resize:vertical}
.cm{border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin:8px 0}.cm.res{opacity:.6}.cm.reply{margin:8px 0 0 14px;background:var(--accent-2)}.cmb{white-space:pre-wrap;margin:4px 0}.cma{display:flex;gap:12px}.cma a,.tgl{cursor:pointer;color:var(--accent)}.tgl{float:right;font-weight:400}
.compose{margin:8px 0}.crow{display:flex;justify-content:space-between;align-items:center;margin-top:6px}

.armodal{position:fixed;inset:0;z-index:100;background:var(--bg);display:flex;flex-direction:column}.arbar{display:flex;gap:12px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}.arbar .muted{flex:1}
.armodal model-viewer{flex:1;width:100%;--poster-color:transparent}.arenter{position:absolute;bottom:24px;left:50%;transform:translateX(-50%)}

/* ---- v2 layout: tidier toolbar, right-panel tabs, compact review bar ---- */
.toolbar{align-items:center;gap:8px}.toolbar .grow{flex:1}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel);box-shadow:0 1px 2px rgba(0,0,0,.06)}
.seg button{font:inherit;font-size:13px;padding:6px 11px;border:0;border-right:1px solid var(--line);background:none;color:var(--ink);cursor:pointer}.seg button:last-child{border-right:0}.seg button:hover{background:var(--accent-2)}.seg button.on{background:var(--accent);color:#fff}
.toolbar .btn,.toolbar .pick{box-shadow:0 1px 2px rgba(0,0,0,.06)}
.more{position:relative}.more summary{list-style:none;cursor:pointer;font-weight:700;padding:5px 12px}.more summary::-webkit-details-marker{display:none}
.menu{position:absolute;right:0;top:36px;z-index:20;min-width:190px;background:var(--panel);border:1px solid var(--line);border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.18);padding:4px;display:flex;flex-direction:column}
.menu button{font:inherit;text-align:left;padding:8px 10px;border:0;background:none;color:var(--ink);border-radius:6px;cursor:pointer}.menu button:hover{background:var(--accent-2)}.menu button[hidden]{display:none}.menu button.on::after{content:' ✓'}
.mlist{position:absolute;left:10px;bottom:34px;z-index:5;max-width:260px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 10px;box-shadow:0 4px 16px rgba(0,0,0,.15)}.mlist[hidden]{display:none}
#review{padding:0;background:var(--panel)}.revbar{margin:0;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:10px 16px}
.revbtns{display:flex;gap:8px;margin-top:8px}.revhist{margin-top:6px}.revhist summary{cursor:pointer}.revhist>div{margin-top:6px}
.rtabs{display:flex;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel);z-index:4}.rtabs button{flex:1;font:inherit;font-weight:600;padding:10px;border:0;border-bottom:2px solid transparent;background:none;color:var(--muted);cursor:pointer}.rtabs button.on{color:var(--accent);border-bottom-color:var(--accent)}
.cnt{display:inline-block;min-width:18px;padding:0 5px;border-radius:99px;background:#d6336c;color:#fff;font-size:11px;line-height:18px}.cnt:empty{display:none}
#detail{padding-bottom:6px}#sizebox,#arbox{padding:0 16px;margin-top:10px}#arbox .arrow{display:flex;gap:8px;align-items:center}#comments{padding:6px 16px 20px}
@media (max-width:900px){.toolbar{gap:6px}.seg button{padding:7px 9px}.toolbar .tools button{font-size:12px}}

.more details,details.more{border:0;padding:0}
.selbar{display:none}
@media (max-width:900px){
  .tabs{padding-bottom:env(safe-area-inset-bottom);flex:none}.tabs button{padding:14px 8px;font-size:15px}
  .top{padding:6px 12px;gap:8px}.top-l{flex:1}.brand{display:none}.sep{display:none}.proj{font-weight:600;font-size:13px}#who{display:none}
  .top .btn{padding:8px 12px;font-size:13px}
  .toolbar{left:6px;right:6px;top:6px;flex-wrap:wrap;gap:6px}.toolbar .grow{display:none}
  .seg button,.toolbar .btn,.toolbar .pick{min-height:38px;font-size:13px}.seg button{padding:6px 9px}.toolbar .pick{max-width:96px;padding:0 6px}
  .menu{position:fixed;right:8px;top:96px}.lg{display:none}#fit{display:none}.toolbar .pick{max-width:84px}
  .mlist{bottom:78px;left:8px;max-width:calc(100% - 16px)}
  .selbar{display:flex;position:absolute;left:8px;right:8px;bottom:8px;z-index:6;gap:10px;align-items:center;justify-content:space-between;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px;box-shadow:0 4px 18px rgba(0,0,0,.22)}.selbar[hidden]{display:none}
  .sb-t{display:flex;flex-direction:column;min-width:0}.sb-t b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sb-t span{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}
  .selbar .btn{min-height:40px;padding:8px 16px}
  .lbl{font-size:11px;padding:1px 6px}.lbl-room{font-size:12px}
  #detail{padding:14px}.revbar{padding:10px 14px}.revbtns .btn{min-height:42px;flex:1}
  .rtabs button{padding:13px 8px}#comments,#sizebox,#arbox{padding-left:14px;padding-right:14px}
  textarea{font-size:16px}.arbar{padding:8px 12px}.arenter{bottom:calc(24px + env(safe-area-inset-bottom))}
  table.bd td{padding:10px 4px}.tree .row,.tree button{min-height:44px}
}

.sm{display:none}@media (max-width:900px){.sm{display:inline}.menu button.sm{display:block}}

body.noprice .price,body.noprice .row .p,body.noprice #sum,body.noprice .room small,body.noprice td.n,body.noprice #sbp,body.noprice .summary{display:none!important}